Locomotive-boiler.



N0. 699,75. Patented ma l3, I902.

S; G. CRDSSLEY.

LOCOMOTIVE BOILER.

(Application filed Get. 21, 1901.; (No Mndel.) 2 Sheets-Sheet l,

Q 000000090 ooooouoooo csoocooos 0000000000 v esoowoaee ("0000 a. Q ooousaooo 0000000000 QOOQQ-OOOQ- 00000000.. @SCQfiQOQQ 'OOQQOOQOQ e bot I 1N Tm: NORRIS PETERS co mom-Limo, WASH Paten cad May I3, I902. s. a. DROSSLEY.

LOCDMOTIVE BOILER.

(Application filed Oct. 21, 1901.)

2 Sheets-Sheet 2.

(No Model.)

lluuuunLu rm: Munms PETiZRS m.no'rm.lmc,. wnumoron. b. c

Human STATES PATENT @FEICE.

SAMUEL G. CROSSLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO FRANK A. l/VUNDER, OF PHILADELPHIA, PENNSYLVANIA.

LOCOMOTlVE-BOILER.

srncrrrcnrron forming part of Letters Patent No. 699,791, dated May 13, 1902.

Application filed October 21,1901. Serial No. 79,323. (No model.)

To all whom it may concern: i

Be it known that I, SAMUEL GUOROSSLEY, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Locomotive-Boilers, of which the'following is a specification.

My invention consists of an improved locomotive-boiler wherein the construction of the same is greatly simplified, provision being made for an increased heating-surface,whereby the heat units are utilized to the fullest extent, means being also provided so that a rapid circulation throughout all parts of the boiler is effected, whereby steam is generated in a rapid and effective manner.

It further consists of novel details of construction, all as will be hereinafter fully set forth, and particularly pointed out in the claims.

Figure 1 represents a longitudinalsectional View of a locomotive-boiler embodying my invention. Fig. 2 represents a section on line so a, Fig. 1. line y 11 Fig. 1.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to-the drawings, 1 designates a locomotive-boiler, the same consisting of the outer shell or casing 2, in the front portion of which is formed the fire-box 3,within which is located a grate of the usual construction.'

at designates a fire-box door, above which extends longitudinally throughout the firebox the water-circulating tubes 5, which may be of any number or diameter and which are preferably deflected at their rear portions and form communication between the front water-leg 6 and the rear water-leg 7 of the fire-box, it being understood that the waterlegs 6 and 7 are in communication with the water-legs 8, (seen lg Fig. 2,) so that the firebox is surrounded by water at all times.

9 designates a combustion-chamber, in the upper portion of which, above the longitudinally-extendingwater-tubes 5, are located the transverse tubes 10, which, it will be noted, are arranged in staggered order, each row of tubes being inclined alternately, as will be Fig. 3 represents a section on.

understood from the sectional view seen in ll designates the fine, which extends longitudinally through the boiler and forms a communication from the combustion-chamber 9 to the smoke-box 12, with which communicates the smoke-stack 13.

' 14: designates a series of Water-tubes which extend in a vertical direction from the lower tube-sheet 15, which latter is preferably curved or arc-shaped, as indicated in Fig. 3,

it being noted that said tubes 14 are arranged so that the tubes in the center of the boiler stand substantially upright, while the tubes on either side thereof have a greater outward inclination, the upper extremities of said tubeslet being suitably secured in the curved upper portion or tube-sheet 16 of the flue 11.

It will thus be seen from the foregoing that by reason of the tubes 14 a communication is formed between the lower water-chamber 17 It will thus-be apparent that by the provision 7 5 of the longitudinally-extending water-tubes 5, which are located above the grate, provi= sion is made for a positive circulation in the front water-leg 6 and therear water-leg 7,

and bythe provision of the transverse watertubes .10, arranged in the manner shown,- means are provided for eifecting the circulation between the water-legs 8 at the sides of the boiler, and it will furthermore be appar-' ent that by locating the water-tubes 14: in the 8 5 position shown a free and unimpeded circulation will be permitted between the chambers 17 and 18 and that, furthermore, since these tubes 14 are subjected to the action of the hot gases as the latter pass from the combustion-chamber to the smoke-box'of the boiler there is no appreciable loss of heat and the products of combustion are utilized to their fullest extent.

It will be apparent that various changes may be made by those skilled in the art which will come within the scope of my invention, and I do not, therefore, desire to be limited in every instance to the exact construction I have herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a locomotive-boiler, Water fire-box, a

plurality of longitudinally-extending watertubes joining the front and rear portions of said water fire-box,a plurality of transverselyarranged water-tubes arranged in series and having diiferent inclinationsjoining the sides of the fire-box, and located above said longitudinally extending tubes, a flue leading from the combustion-chamber to the smokebox, and water-tubes located in said flue.

2. Alocoinotive-boiler consisting of awater fire-box, a plurality of longitudinally-extendingwater-tubes joining the front and rear legs of said water-box, the rear extremities of said tubes being deflected downwardly, a plurality of transverse water-tubes located in the combustion-chamber above said longitudinally-extending tubes, said transverse tubes being arranged in series and having diflerent inclinations each series inclined in opposite directions, a flue leading from the combustion-chamber to the smoke box of the boiler, and water-circulating tubes located in said flue.

3. A locomotive-boiler consisting of water fire-box surrounding the combustion-chamber, a plurality of longitudinally-extending water-tubes joining the front and rear legs of said water-box, the rear extremities of said tubes being deflected downwardly, a plurality of transverse Water-tubes located in i the combustionchamber above said longitudinally-extending tubes, said transverse tubes being arranged in series and having different inclinations, a flue leading from the combus tion-chamber to the smoke-box of the boiler,

and water-circulating tubes located in said flue, the lower portion of said flue being areshaped and serving as a tube-sheet for the reception of the lower ends of said water-tubes.

4. In a locomotive-boiler, the combination of a water fire-box, a plurality of longitudinally-extending tubes extending between the front and rear portions of said fire-box, a series of transversely-extending tubes located in the combustion-chamber above said longitudinally-extending tubes, said transverse tubes being longitudinally inclined and arranged in staggered order, a flue leading from said combustion-chamber to the smoke-box, the lower portion of said flue being arcshaped and the upper portion of said flue being also curved, and water-tubes joining the upper andlower portions of said flue, the cen-' tral water-tubes being substantially vertical and the outer water-tubes having a greater inclination outwardly than said central wator-tubes.

5. In a boiler, a Water fire-box, a plurality of longitudinally-extendingtubes,located between the front and rear portions of said firebox, a series of transversely extending tubes, located in the combustion-ch amber above said longitudinally-extending tubes, said transverse tubes being in series and each series inclined in opposite directions, a flue leading from said combustion-chamber to the smokebox, and water-tubes joining the upper and lower portions of said flue, the central watertubes being substantially vertical and the outer water-tubes having a greater inclination outwardly than said central Water-tubes.

SAMUEL G. CROSSLEY.

iVitnesses:

WM. CANER WIEDERSHEIM, O. D. MCVAY. 

